电液转辙机的主机和副机转换不同步,可通过调整溢流阀弹簧弹力。()
参考答案:错
一个铜球,体积10cm3,质量62.3g,这个球是空心还是实心?如果是空心的,空心部分体积多大?(ρ铜=8.9×103kg/m3)
--- Do you have __________ else to say for your mistakes?
--- ________ but sorry.
A.anything; Something
B.something; Everything
C.something; Anything
D.anything; Nothing